CN2299232Y - Coal burner of steam boiler - Google Patents

Abstract

The utility model relates to a combustion chamber device of a coal-fired steam boiler. A steam pot of the utility model is positioned above a water tank. A steam transportation pipe, a steam pressure gauge, an annular smoke outlet channel, a pressure limiting valve, and a water limiting device are arranged on the steam pot, and an outlet of the smoke outlet channel is arranged on one side of the steam pot. A combustion chamber is in an umbrella shape, and the upper part of the combustion chamber is provided with an umbrella type water tank whose radian is same as the radian of the combustion chamber. The lower part of the inner side of the water tank is provided with a hole which is communicate with a smoke dividing pipe, and the bottom of the water tank is provided with a hood for eliminating smoke and dust and dividing fire, the radian of the hood for eliminating smoke and dust and dividing fire is equal to the radian of the water tank, and one side of the water tank is provided with a water inlet. The utility model has the advantages of fast temperature rise, good insulating efficiency, etc.

Description

The coal-fired steam boiler combusting room device

The utility model relates to a kind of coal-fired steam boiler combusting room device, belongs to the coal-burning boiler technical field.

The existing coal-fired steam boiler of China, mostly based on horizontal, its water tank crouches in the top of combustion chamber for a jar shape, has many deficiencies, mainly is more than 1, power consumption.Because water mainly relies on and inhales fiery the intensification in jar, must be equipped with powerful air-introduced machine pyrotechnics suction tank inner flue is put heat.2, charcoal dirt is big.Because the brute force of air-introduced machine is pullled, and many coals are drawn in flue, though dust removal installation is arranged, still has charcoal dirt to fly upward near the stove district, causes environmental pollution.3, the heat energy utilization rate is low.Because water tank is slept with one's head on a high pillow, and must reserve roomy flue, it is heat insulation that roomy interval relies on the refractory wall external world between combustion chamber and water tank, though insulation effect is arranged, most of shock heating firepower range consumes on refractory wall.4, preheating time is long.When boiler is on fire,, the heating power conduction temperature-rise period of certain hour must be arranged because furnace temperature is on the low side.

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art and a kind of combustion chamber is provided is umbrella shape, is equipped with umbrella shape bell-type water tank, thermal efficiency height, and globality is strong, easily transportation, free of contamination coal-fired steam boiler combusting room device.

The purpose of this utility model is achieved in that its vapor can is provided with steam transmitting pipe, steam gauge, annular smoke outlet flue, pressure limiting valve, the device of restricting water supply, a side is provided with the smoke outlet flue outlet, its structural feature is: the combustion chamber is umbrella shape, and its top is provided with and its umbrella formula water tank with radian.The water tank lower inside has the hole, and the hole is communicated with smoke separating pipe, and the bottom is provided with the smoke abatement and dust control fire separating shield with its arc such as grade, and a side is provided with water inlet.

The purpose of this utility model can also reach by following technical measures: vapor can is positioned at arcs such as water tank wall bottom and locates for 40 °.Water tank lower inside 50mm place has the hole, and orifice ring is 100mm to spacing.

Compared to existing technology, the utlity model has following advantage:

1, because the combustion chamber is a umbrella shape, water tank also is a umbrella shape, quick heating, high insulating effect.

2, device for eliminating smoke and dust is arranged in the stove, and most of flue dust reclaims in stove, and small part is discharged from smoke outlet flue, and the environmental pollution coefficient is little.

3, structural design is simple, and scientific arrangement is reasonable, thermal efficiency height.

The explanation of accompanying drawing drawing:

Accompanying drawing is the utility model structural representation.

Among the figure, combustion chamber (1), smoke abatement and dust control fire separating shield (2), water inlet (3), shunting pipe (4), water tank (5), smoke outlet flue (6), steam gauge (7), steam transmitting pipe (8), pressure limiting valve (9), vapor can (10), the valve of restricting water supply (11), annular smoke outlet flue (12).

Below in conjunction with drawings and Examples in detail the utility model is described in detail.

Combustion chamber of the present utility model (1) is umbrella shape, and the umbrella shape radian is 180 °.The top of combustion chamber (1) is furnished with the water tank (5) with arc, and water tank (5) also is umbrella shape.The arc 40 degree places such as upper wall bottom of water tank (5) are welded with cylindricality vapor can (10).Vapor can (10), water tank (5) are manufactured by cold-pressed steel plate.Water tank (5) ectonexine equi-spaced apart 200mm, water tank (5) bottom is for touching fiery heating surface, and lower inside 50mm place has the hole, and orifice ring is 100mm to spacing, and the hole is communicated with shunting smoke pipe (4).Being shunting pipe (4) is welded on vapor can (10) inboard, water tank (5) top with its subtend along the inboard rotation of outside steel plate half-turn, and with cold-pressed steel plate it is sealed.The bottom of steam tank (10) has the rectangle outlet of mouthful warp greater than shunting pipe (4), drawing flue as the integral body in the vapor can (10) is annular smoke outlet flue (12), the top of annular smoke outlet flue (12), the valve (11) of restricting water supply is installed in the bottom of vapor can (10), the top of vapor can (10) is equipped with steam gauge (7), steam transmitting pipe (8).

First-class arc smoke abatement and dust control fire separating shield (2) is equipped with at equidistant 100mm place, water tank (5) bottom, smoke abatement and dust control fire separating shield (2) is made with refractory material, uniform thickness 100mm, form by top mesh and bottom obturator two parts, the effect of mesh is that smoke abatement returns dirt row fire, and the effect of obturator is that poly-fire returns dirt.Top mesh and bottom obturator are made the mother-son groove shape respectively, so that its firm butt joint increases the overall performance that dedusting divides fire.The every interval 40mm in the top of smoke abatement and dust control fire separating shield (2) equidistantly has venthole.Smoke abatement and dust control fire separating shield (2) assembles support with refractory brick, and with umbrella shape water tank (5) bottom lock, the middle part stays 20mm to go back to the dirt hole below water tank divides fire tube, makes the directed discharging of pyrotechnics, charcoal dirt returns in the stove.

Fire bars deslagging position in the combustion chamber (1) is provided with locking device so that the intensity of a fire is concentrated according to the structure of the different type of furnaces on the top at deslagging position, and orientation improves the thermal efficiency, and fire door adopts big wicket, and intussusception is installed, and the wicket deslagging uses, and the gate maintenance is used.

The course of work of the present utility model: when boiler work on fire, because the push-and-pull action of pressure fan and air-introduced machine, under the orientation of combustion chamber (1) structure, pyrotechnics rushes at smoke abatement and dust control fire separating shield (2) and fight for outlet in smoke abatement and dust control fire separating shield (2), form red-hot, make the smog burning, charcoal dirt falls after rise in kitchen range, finishes the smoke abatement and dust control of phase I.Go out smoke abatement and dust control then and be divided into the bottom that cover (2) flame hits water tank (5) again, flame is heated once again and find new outlets.Because the curved smooth structure of water tank bottom, there is fire seperating hole its underpart, makes flame take advantage of a situation and descend, runs quickly into a minute fire tube road, continues performance heat effect, and is coalescent behind several meters long pipes (4), discharges from smoke outlet flue (6).In the bump of flame and umbrella shape water tank bottom flows, water tank (5) large tracts of land is directly heated, flue dust is burnt once again fall after rise in stove, finish the smoke abatement and dust control of second stage.Twice collision of flue dust, twice folding road is consumed in most of flue dust in the stove, and by water tank (5), combustion chamber (1) firepower collides and turns back, and water tank (5) large tracts of land directly is heated.By smoke abatement and dust control fire separating shield (2) and refractory brick in the stove and outer heat-insulation layer effect, reach the furnace insulation effect.

Claims (3)

1, a kind of coal-fired steam boiler combusting room device, its vapor can is provided with steam transmitting pipe, steam gauge, annular smoke outlet flue, pressure limiting valve, the device of restricting water supply, a side is provided with the smoke outlet flue outlet, it is characterized in that:

A, combustion chamber are umbrella shape, and its top is provided with and its umbrella formula water tank with radian;

B, water tank lower inside have the hole, and the hole is communicated with smoke separating pipe, and the bottom is provided with the smoke abatement and dust control fire separating shield with its arc such as grade, and a side is provided with water inlet.

2, coal-fired steam boiler combusting room device according to claim 1 is characterized in that vapor can is positioned at arcs such as water tank wall bottom and locates for 40 °.

3, coal-fired steam boiler combusting room device according to claim 1 is characterized in that water tank lower inside 50mm place has the hole, and orifice ring is 100mm to spacing.